Improvement in lime-kilns



WWMWW:

Patented March-7, 18711 which will enable otnersfsknlea in 1 i whthroughthe line yy, fig. 9

. lowzcold orunburntlrock will consume' its own; smoke.-`

"hereinafter specified. i i A Whenpossible, I1 prefer tobuild .thehflnin a bank,

i I The' .lower parts j otras AQKIR K, orf K A Nie-A' s *cir-Y, M rss 0URI,

Leners Patient. 112,468, dans March 7, 1an.

` The Schedulereferred to inthese Letters Patent and making paxtvof thesame.

` Tcdlliuhom'itmtag/ concern l* Be Lime-Kil'ns; and I fdo,herebyldeclare that the following isa full,` clear, and `exactdescriptionthereof', the .art to make anduse thesame, reference beinghad to the accome panyrilng drawing forming:` part of thisspecification, in

1c-: l Figurefl'is a front viewof Vmyairnproved limekilril Figure 2isafvertical section ofthe same taken througlithejlinex x', fig. 3. i;

lfgure` is` a horizontal section of the same taken Figure 4 is 'ahorizontallsection of the same taken l 1 Y lSimilar letters of reference`indicate corresponding "partsr i i i i :proved lime-kiln,`jwhioh shallbe so constructed as to `enable thefkiln to` be workedifromtlie front in`ring and indrawing the lime and ashes, which will not al to' passthrough, and lwhichfV i This" invention, pertainsv toari improved.,arrange-Y mcnt `of an inelinedrplate inthe side `furnaces of a kiln,whereby certain wtlji` its `top a few feet belowthe lime-stone quarry,`and with the]archesma` projectingl- The front wall i "thick-at thebottom and `threefeetthiclsat theto .[The` other parts ofthe `wallshould'bepabout two feet thick.

z'lhe outer 'doo1-ways or arches A should be'about `seven feet widenponlthe outside and four or five feet The-bottoms of'thedraws'iBlshonld be made of iron 4oi'fother suitablehard and smoothsubstance. The

front c bds of `thetwo draws B should comewithin `about four inches ofeach other, their back endsbeing about three feet apart. i I

` of the drawvsshould be arched over infront, so as to be` abouttwentlinches in diameter.-

vlllheupper partsoflthe draw B" should be about?L three feet wide,` sixfeet long, and six feet high. J, The upper1 endsof thedraws B should beiofthe same shape and `size as thelower ends of the eupolas 'they `extendupward, become W'lhe masonry between thedraws B serves as a foundationfor the ash-piti) and furnace E. The aslii 1. ,pitD should benot less`than `eighteen inches wide at it knownthat I, THOMs A.` KIRK, oflKansas ,Q City, inthe county ofJa'ckson and ,State ofltlisshuri, haveinvented `a `new` and useful Improvement 'in My invention hasfr,` itsobject to' furnish1 an im advantages `are attained, as-` the top,thirteen inches wide at the bottom, and about -six feet long, and should-be builtV with thirteen-inch walls. f

In building -the walls of the furnace the bricks should be laid withtheir ends to the'fire, and from, two to four inches apart. `,VS/hen thewalls have been carried up` two, three, or fouitxcoursesha stretchersbouldbeV placed uponV the bricks', binding them together and formingthe lire-holes. 4Another set ofv tire-holes is then formed abovethe'stretchers, and so on for about two-feet in height.'

I The walls of the furnace are then finished without `fire-'hole's, toform a space in the upper part of the furnace foriburning the smoke,thus increasing the heat, economizing'fuel, and preventing the lime fromheilig discoloredby thessmoke.

The furnace should be about six feet long, two feet wide, andfonigfeethigh, and should be arched from front to rear., y Y

Thebottom' of the furnace may be formed of grates, or, if desired, thetop of the ash-pit may be arched over, and the bottom of the furnacemade inclined, with openings at .the sides about six inches in width, oallow' thecoalsand aslresl'to'tll against the liningl of the cupolas."The port-holes may all be in front,'ii` desired. i Y When' only bnesideor part of the kiln is -to be used,- the port-holes upon thejother sidemay all be closed 4 l The lining of the kiln should be of lire-bricklaid in remortar, or of other fire-proof substance. The outer walls maybe of stone or commony brick laid in brick-clay mortar, except the partsexposedto the weather, which should be laid with lime-and-sand mortar. f

The sidesV of theV draws B next tothe furnace should be straightporinclined somewhat inward, 'so that the lower partsv of the 'said drawswilll be pantially beneath the furnace. This arrangement of the draws BB enables them to be discharged of .their contents at nearlythc samepoint, and vinto the same receptacle, when desired;

'site side, besides allowing the flame to come inv actual C contactvwith the rock; thus no unburnt rockwill escape. n e

The furnace should` be provided with draugheholes F, inthe ordinary`manner. I u

v\*C+ are Wedge furnmaces, builtin the sides ofthe kiln.

Theyare one'foot in diameter in front,`incliiied in ward to the cupolas; the inside end is two feet high,

twenty inches wide,

with a si'nall `ash-pit H, ten or twelve inches -in diameter, with a.hole, g', at their The plates of the side furnaces G G, inclined asbackend, for the ashes and coals to pass through, therespecied,.andarranged to leave a space, g', adjacent by making them suitable forburning coal. The furto the lining of the kiln, substantially as shownand naces G are built of re-briek or any suitable redescribed, lfor thepurpose set forth.

proof material. THOMAS A. KIRK.

Having thus described my invention, 1 `Witnessesz y I claim as new and'desire to secure by Letters CHARLES DURYER,

Y OSCAR CRAWFORD.

